Chosen Solution
My iPhone camera has gone a bit weird. It doesn’t always happen, but often in bright light there are bright pink/red, digital looking shapes which briefly flash across the display. (It might be since I photographed the eclipse ;-) Do you happen to know what the problem is and what part/s I’d have to replace to fix it?
If your iPhone did not encounter liquid or a hard floor, you’d have to start by replacing the back camera and see if it solves your issue. This guide has the needed instructions, tools, and part. IMPORTANT notes: 1/ Skip steps 17 and 18. You don’t need to remove the battery; whereas taking it out puts you at some risk of damaging your logic board; 2/ Step 21 is important. Disconnect those “interconnect cables” from the side depicted in the guide, not the other side, as you risk damaging many critical parts on the board; 3/ Tools and prying: don’t pry at the board by inserting tools between the battery and the board. Don’t use any metal tools inside the phone except the screw driver ONLY to remove screws. I usually remove all the screws, disconnect all the flat cables that have to be so, then “lightly” hold the board by the SIM slot and pull it out. If I feel any resistance, I stop and look again for anything that may be forgotten, stuck, or at risk of breaking/ripping. This is a simple repair that can easily go wrong, so tread lightly and don’t force it.
No luck catching it so far. It hasn’t appeared in a picture yet, but it’s similar to the effect in this photo, taken with a Sony compact (that camera is fine, but I had a problem with transferring RAW files to iPhoto. I don’t think my camera is supported)